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OSBYTE &D4 (212) - Read/Write volume/ENVELOPE For BELL

   To set the BELL character to use an envelope, use (envelope-1)*8
   To set the BELL volume, and not use envelopes, use 256+((volume-1))*8
   The value &90 is *CONFIGURE LOUD and &D0 is *CONFIGURE QUIET
   (Electron OS)
   The unexpanded sound system has fixed amplitude.

See Also

Jgharston 22:54, 26 May 2009 (UTC)